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Beach sea / Cortex / Economy first / OBSERVED BUILD

Standard beach sea

Cortex Beach sea build order · Supreme Isthmus

The role's usual play: com goes to sea to build a shipyard around 2 minutes, pumping frigates and destroyers to contest enemy sea entry or hold vision, with an advanced metal extractor around 10 minutes as the transition into the team's…

Usually shipyard first (93%)

#naval #eco · 1591 distinct matches · 207 players · 84% of Cortex Beach sea games · team won 55% of 1795 · Recently observed

HOW TO PLAY IT

Key timing: Shipyard by 1:56

  1. Open 3 mex, then send com to sea to build Shipyard by 1:56.
  2. Add tidal generators, wind and more mex to fund the shipyard.
  3. Pump Riptide first, then Oppressor to contest enemy sea entry.
  4. Get T2 constructor out to start scaling the naval economy.
  5. Transition into Advanced Metal Extractor as the economy phase begins.

Phase by phase

TYPICAL OF ITS 1591 GAMES
  1. 1
  2. 2
  3. 3
PLAY THE OPENING

Follow the example game's first 6:00 step by step: what to build now, what comes next, and where it goes. At 1× it keeps pace with your own game.

  1. 1

    Up to the Shipyard

    Economy
    • Metal Extractor3Mex
    • Wind Turbine3Windfor allies
    • Wind Turbine2Wind
    • Energy Storage1Energy storage
    Order
    1. ShipyardShipyard after 3 mex, 2 wind, 1 energy storagedone ~1:56, middle half 1:43–2:07

    Some games also: Guard (30%)

    By 1:39 in all: 3 mex · 2 wind · 1 energy storage

    The example game in this phase · 6 steps
    1. Mex ×3
    2. Wind ×2
    3. Wind ×3for Air
    4. Energy storage
    5. GuardGuard
    6. ShipyardShipyarddone 2:02 · typical 1:56
  2. 2

    Shipyard to 5:00

    Economy
    • Metal Extractor5Mex
    • Tidal Generator2Tidal
    Builders
    • Construction Ship2 Con ship
    Army
    • Riptide2 Frigate
    • Herring1 Missile corvette
    • Oppressor1 Destroyer
    Other
    • Naval Radar / Sonar Tower1 Naval Radar / Sonar Tower

    Some games also: Urchin (46%) · mex (38%) · wind (37%) · submarine (36%) · wind (36%)

    By 5:00 in all: 8 mex · 3 wind · 2 tidal · 1 energy storage

    The example game in this phase · 18 steps
    1. Tidal
    2. Construction ShipCon ship
    3. Tidal
    4. Construction ShipCon ship
    5. OrcaSubmarinedone 3:03
    6. Mex
    7. Con turret
    8. Mex
    9. RiptideFrigatedone 3:47 · typical 3:50
    10. Mex ×2
    11. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    12. GuardGuard
    13. RiptideFrigate
    14. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    15. Wind ×2
    16. Death CavalryDeath Cavalry
    17. Mex
    18. Wind ×4
  3. 3

    5:00 to 10:00

    Economy
    • Metal Extractor1Mex
    • Wind Turbine8Wind
    Builders
    • Construction Ship1 Con ship
    • Death Cavalry1 Death Cavalry
    Army
    • Urchin1 Urchin
    • Riptide5 Frigate
    • Oppressor2 Destroyer
    • Herring2 Missile corvette
    Other
    • Naval Radar / Sonar Tower1 Naval Radar / Sonar Tower

    Some games also: Naval Construction Turret (49%) · Guard (47%) · tidal (39%) · Radar Tower (39%) · wind (34%)

    By 10:00 in all: 9 mex · 10 wind · 4 wind · 4 tidal · 1 energy storage · 1 Naval Construction Turret

    The example game in this phase · 97 steps
    1. Mex
    2. Wind ×2
    3. Mex
    4. OppressorDestroyerdone 6:24 · typical 5:14
    5. Wind
    6. GuardGuard
    7. Wind
    8. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    9. Wind ×5
    10. Radar TowerRadar Tower
    11. Wind ×3
    12. Converter
    13. HerringMissile corvette
    14. Naval Construction Turret
    15. Converter ×2
    16. RiptideFrigate
    17. Converter
    18. Wind ×2
    19. RiptideFrigate
    20. Wind ×2
    21. Advanced Metal ExtractorT2 mexdone 8:13 · typical 9:58
    22. UrchinUrchin
    23. Wind
    24. RiptideFrigate
    25. Wind
    26. Advanced Metal ExtractorT2 mex
    27. Wind
    28. RiptideFrigate
    29. Mex
    30. Wind ×2
    31. Advanced Metal ExtractorT2 mex
    32. Tidal ×2
    33. Death CavalryDeath Cavalry
    34. Wind ×2
    35. Tidal
    36. Wind
    37. RiptideFrigate
    38. Tidal
    39. Wind
    40. GuardGuard
    41. Wind
    42. OppressorDestroyer
    43. Tidal
    44. Advanced Metal ExtractorT2 mex
    45. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    46. Tidal
    47. Naval Construction Turret ×2
    48. HerringMissile corvette
    49. RiptideFrigate ×2
    50. Wind ×2
    51. RiptideFrigate
    52. Wind
    53. RiptideFrigate
    54. Wind
    55. RiptideFrigate
    56. Wind ×2
    57. OppressorDestroyer
    58. Wind ×2
    59. HerringMissile corvette
    60. Wind
    61. RiptideFrigate
    62. Wind
    63. OppressorDestroyer
    64. HerringMissile corvette
    65. Advanced ShipyardAdvanced Shipyarddone 12:24
    66. Wind ×2
    67. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    68. Wind ×4
    69. Advanced Construction SubAdvanced Construction Sub
    70. Wind
    71. SlingshotSlingshot
    72. Wind
    73. SlingshotSlingshot
    74. Wind
    75. PathfinderPathfinder ×2
    76. Wind
    77. PathfinderPathfinder
    78. Wind ×2
    79. PhantasmRadar jammer ship
    80. Wind ×2
    81. DespotBattleshipdone 13:37
    82. Wind ×4
    83. Arrow StormAnti-air shipdone 13:50
    84. Wind ×2
    85. Death CavalryDeath Cavalry
    86. Arrow StormAnti-air ship
    87. Wind
    88. SlingshotSlingshot
    89. Wind
    90. Death CavalryDeath Cavalry
    91. Wind ×2
    92. SlingshotSlingshot
    93. Wind ×7
    94. Naval Metal Storage
    95. Wind
    96. Naval Advanced Metal ExtractorNaval Advanced Metal Extractornot finished by 15:00
    97. DespotBattleship

Counts are medians over the build's games: half of them build more, half fewer. The example game is fanboi's (33 OS, 09/10/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine3 Wind to Airfirst at 1:46 · in 77% of games

You get

  • Finch1 Finch from Airfirst at 2:00 · in 80% of games
  • Lazarus1 Lazarus from Geofirst at 2:13 · in 63% of games
  • Hephaestus1 Heavy transport from Airfirst at 2:16 · in 64% of games
  • Construction Bot1 Con bot from Geofirst at 2:26 · in 70% of games
  • Hercules1 Light transport from Airfirst at 2:34 · in 32% of games
  • Advanced Construction Bot1 T2 con bot from Techfirst at 8:08 · in 89% of games

How it plays out

Typical game of this build, running totals by minute

Metal produced

010k20k30k
0:005:0010:0015:00

metal

Enemy metal destroyed

05k10k
0:005:0010:0015:00

metal

Own metal lost

02.5k5k7.5k
0:005:0010:0015:00

metal

1795 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00155300
4:002540051
5:003717176101
6:005049487280
7:006492975592
8:00807016651001
9:00967926141532
10:001153637242325
11:001368547443105
12:001625058553871
13:001895168784629
14:002167379245680
15:002456588566501
WHAT THE NUMBERS SAY

Standard Beach sea play has the lowest team win rate of these builds and destroys far less enemy metal early than it loses eco time.

  • + Metal produced climbs to 24945 by 15:00, the highest of all six roles.
  • + Riptide and Oppressor together make 63% of army, a focused naval composition.
  • − Enemy metal destroyed is only 200 by 5:00, barely contesting early sea.
  • − T2 factory only reached in 35% of games, behind other roles' T2 timing.
THE EXAMPLE YOU ARE READING

fanboi

33.3 OS · 09/10/2026

Open source match ↗

7 received units · includes a constructor
147 metal received · 49770 energy received

Allied construction assistance is unknown. Timings are observations, not a promise of solo reproducibility.

Typical milestones

Shipyard1:56Middle 50%: 1:43–2:07 · n=1792
Riptide3:50Middle 50%: 3:12–4:34 · n=1749
Oppressor5:14Middle 50%: 4:29–6:06 · n=1728
Advanced Metal Extractor9:58Middle 50%: 9:17–10:54 · n=1519

Played most by

EpicTyrannus120games of this buildDamsko69games of this buildKbot_my_Ahole67games of this buildWaboum64games of this buildfanboi63games of this build